God mode
Successfully complete the game under the Fetish difficulty
setting, then press [Down] (2), [B], [Up], [X],
[Y], [X], [White], [Up]x2, [L], [Y]
at the title screen. The message "God Mode" will appear
at the bottom of the screen to confirm correct code entry. Note:
The game cannot normally be saved while this code is enabled.

Use the following trick to save the game while in God mode. Enable
the God mode code, then finish a few levels with a three star
rank or higher until you get a bonus level (Hard as Nails, Brawl,
ect.). Then, play one of the bonus levels, die, and quit. This
will reset the codes you enabled. Next, play any easy level and
save at one of the check points. You will keep all the stars that
you have earned with the cheat codes.

Cheat mode
The following codes have no effect until you complete the
both levels with at a five star rank under the hardcore difficulty
setting to unlock them. Each code has two parts, each of which
are unlocked by a specific level (for example, at the end of level
1 and level 2 with at least a three star rank). When this is done,
one half of a code will appear at the bottom of the image that
is now unlocked in the "Bonus Features" menu. Once both
halves (images) are unlocked, that specific code can now be activated
in any level in the game.

Invisibility
Press [X]x3, [Down], [X], [Down],
[B], [Up] at the main menu. Complete the Trained To
Kill and Border Patrol levels to unlock this code.

Monkey Skin
Press [X]x2, [White], [Down], [Y],
[X], [B], [Down] at the main menu. Complete the
Press Coverage and Wrong Side Of The Tracks levels to unlock this
code.

Rabbit Skin
Press [Left], [R]x2, [Y], [R]x2,
[X], [L] at the main menu. Complete the Kill The Rabbit
and Divided They Fall levels to unlock this code.

Regenerate
Press [White], [Right], [B], [White],
[Black], [Down], [B], [Left] at the main menu.
Complete the Fueled By Hate and Grounds For Assault levels to
unlock this code.

Runner
Press [White]x2, [L], [White], [Left],
[Right], [Left], [Right] at the main menu. Complete
the Born Again and Doorway Into Hell levels to unlock this code.
This code allows unlimited sprint.

Super Punch
Press [L], [Y]x3, [B]x3, [R]
at the main menu. Complete the Mouth Of Madness and Doing Time
levels to unlock this code.

Brawl Game mini-game
Successfully complete levels 6 through 10 five a three
star or greater rank.

Time 2 Die mini-game
Successfully complete levels 16 through 20 five a three
star or greater rank.

Hints

Opening gates
When on a level that requires a crowbar to open a gate,
just shoot the lock with a gun. You can now walk through the gate.

Killing Piggsy
To finish off Piggsy, after you stab him three times
go up the stairs and lure him onto the grate at the top level.
The grate will bend the first time and he will run away. Lure
him back upstairs and onto the grate for a second time and he
will fall through. Make sure that you are also not on the grate
or you will suffer a similar fate as Piggsy.

shotgun
After you are let out of the execution room, you will
soon find yourself in a basketball court where you have to defeat
several gang members that are sent out after you. There is an
opening in the fence around the court where you will see a posted
sign reading "Vote Congressman Matthew R. Dione for Willington
Mayor". Under the sign in the tall grass should be a sawed-off
shotgun.

shotgun
There is a shotgun in the padlocked closet. After you
get the crowbar, go back to where you killed the third Wardog
in the level (by door with the rope that you have to cut with
the machete). Use the crowbar on that padlock to get a sawed-off
shotgun that you can use throughout the level.

Mouth Of Madness level: Bonus item
In this level, you must kill the smiley hunter on the
tower and bring his body to the guard room. Kill the hunter on
the tower and make sure to cut off his head. However, do not bring
his body to the guard room (just his head). An intermission sequence
will show you entering the guard room with only the head. Starkweather
will say "For bringing this head I will leave you a little
gift in the next location". Look around for the unknown item.

Easy five star rating in hardcore
mode
Successfully complete the game in Fetish mode. Then,
enable the "God mode" code and play the game in hardcore
mode. You will be invincible. Execute everyone. If you are seen,
run into the shadows, execute him, then run through the level.

Grand Theft Auto 3 references
Towards the end of the game, the journalist on
television doing a news report about Starkweather mentions Carcer
City's police chief Gary Schaffer and his involvement with Starkweather.
In Grand Theft Auto 3, on the Lips 106 radio station, a
news report states "In nearby Carcer City, police chief Gary
Schaffer's was cleared of corruption charges." It then continues
to say "Let's hope those missing witnesses turn up soon."

On the Drunk Driving level, when you get to the graveyard you
can see a destroyed Stallion.

Grand Theft Auto: San Andreas reference
While playing through Manhunt, in many scenes
are drink machines that have Sprunk Cola on them. This is the
drink that is featured in Grand Theft Auto: San Andreas.